Answers

Subtract 14/81 from 84/64

1^st number: 1 20/64, 2^nd number: 14/81

84/64 - 14/81 is 1477/1296.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 64 and 81 is 5184
   
   Next, find the equivalent fraction of both fractional numbers with denominator 5184
2. For the 1st fraction, since 64 × 81 = 5184,
   84/64 = 84 × 81/64 × 81 = 6804/5184
3. Likewise, for the 2nd fraction, since 81 × 64 = 5184,
   14/81 = 14 × 64/81 × 64 = 896/5184
4. Subtract the two like fractions:
   6804/5184 - 896/5184 = 6804 - 896/5184 = 5908/5184
5. After reducing the fraction, the answer is 1477/1296
6. In mixed form: 1181/1296

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁸⁴/₆₄-²⁸/₈₁ ⁸⁴/₆₄-⁴²/₈₁ ⁸⁴/₆₄-⁷⁰/₈₁ ⁸⁴/₆₄-⁹⁸/₈₁

Subtract Fractions Calculator